Global Patent Index - EP 1911231 A1

EP 1911231 A1 20080416 - ADAPTIVE EQUALIZER TAP STEPSIZE

Title (en)

ADAPTIVE EQUALIZER TAP STEPSIZE

Title (de)

ADAPTIVE ENTZERRER-ABGRIFFSSCHRITTGRÖSSE

Title (fr)

TAILLE DE PAS DE PRISE D'EGALISEUR ADAPTATIF

Publication

EP 1911231 A1 20080416 (EN)

Application

EP 05801242 A 20050926

Priority

  • US 2005034713 W 20050926
  • US 70063005 P 20050719

Abstract (en)

[origin: WO2007011386A1] An apparatus comprises an adaptive filter having groups of taps, each group comprising at least one tap having an associated tap value; and a controller for selecting a scaling factor for at least one group of taps as a function of tap values of the group. The controller further adjusts an error value as a function of the selected scaling factor. The adaptive filter adapts tap values of the at least one group of taps as a function of the adjusted error value.

IPC 8 full level

H04L 25/03 (2006.01)

CPC (source: EP KR US)

H04L 25/03 (2013.01 - KR); H04L 25/03057 (2013.01 - EP US); H04L 25/03267 (2013.01 - EP US); H04L 2025/0342 (2013.01 - EP US); H04L 2025/0349 (2013.01 - EP US)

Citation (search report)

See references of WO 2007011386A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 2007011386 A1 20070125; CN 101228752 A 20080723; EP 1911231 A1 20080416; JP 2009502097 A 20090122; KR 20080040672 A 20080508; US 2009262795 A1 20091022

DOCDB simple family (application)

US 2005034713 W 20050926; CN 200580051124 A 20050926; EP 05801242 A 20050926; JP 2008522758 A 20050926; KR 20087001269 A 20080116; US 98889805 A 20050926